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Open-source alternatives to Confluence

Confluence is Atlassian's team wiki and knowledge base tool, used for project documentation, meeting notes, runbooks, and internal knowledge management. It integrates natively with Jira for linking documentation to epics and tickets. Confluence supports structured pages, macros for embedded content, and space-level permissions for access control.

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The alternatives

outline

★ 38,399 TypeScript NOASSERTION

The fastest knowledge base for growing teams. Beautiful, realtime collaborative, feature packed, and markdown compatible.

outline/outline Updated 2026-05-06

wiki

★ 28,273 Vue AGPL-3.0

Wiki.js | A modern and powerful wiki app built on Node.js

Requarks/wiki Updated 2026-05-01

wiki

★ 28,212 Vue AGPL-3.0

Wiki.js | A modern and powerful wiki app built on Node.js

requarks/wiki Updated 2026-04-20

BookStack

★ 18,743 PHP MIT

NOW MANAGED ON CODEBERG

BookStackApp/BookStack Updated 2026-05-06

BookStack

★ 18,696 PHP MIT

A platform to create documentation/wiki content built with PHP & Laravel

bookstackapp/bookstack Updated 2026-04-22

Comparison notes

Outline is an OSS wiki with Markdown editing, team spaces, and a clean interface — the closest direct replacement for Confluence's core documentation use case. BookStack is a more structured OSS wiki organized around Books, Chapters, and Pages with role-based access. The main gaps vs. Confluence: Outline lacks Confluence's Jira macro integration for embedding live issue lists in pages. Confluence's template library and page macros (roadmaps, decision logs, status badges) require custom implementation in OSS alternatives. Spaces with inheritance-based permissions in Confluence are more granular than most OSS wikis provide.

Migration tips

  • Export Confluence spaces as HTML (Space Tools → Content Tools → Export) — the HTML export preserves hierarchy and most formatting
  • Confluence's XML export (backup) is more complete but requires custom parsers to import into other tools
  • Use the community-maintained confluence-to-outline migration scripts to convert HTML exports to Outline's Markdown format
  • Recreate Confluence space permissions and user groups in the target tool — user access models differ significantly
  • Audit macros used in your Confluence pages — macros like Jira issue lists, roadmaps, or decision tables require manual recreation

FAQ

Can I fully replace Confluence with an OSS tool?

Feature parity varies. Most OSS alternatives cover 70-90% of core workflows, but may lack polish, integrations, or specialized features. Pilot the alternative with a subset of your team before fully committing.

What's the cost of self-hosting?

Plan for ~$5-50/month in VPS costs (DigitalOcean, Hetzner, etc.) plus 2-8 hours/month in maintenance. For a team of 20+, self-hosting usually breaks even against SaaS pricing within 6-12 months.

Which alternative should I pick?

Sort by GitHub stars (a proxy for community health), check the last-pushed date (avoid unmaintained projects), and read recent issues to gauge responsiveness.